Home / 6,439.61-9,659.42-3,516.32

Finding the Fourth Proportional to 6,439.61, 9,659.42 and 3,516.32

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Solution

The fourth proportional to 6,439.61, 9,659.42 and 3,516.32 is: 5,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.61 : 9,659.42 = 3,516.32 : x
  2. Step 2: Convert to fraction form
    6,439.61/9,659.42 = 3,516.32/x
  3. Step 3: Cross multiply
    6,439.61x = 9,659.42 × 3,516.32
  4. Step 4: Simplify right side
    6,439.61x = 33,965,545.86
  5. Step 5: Solve for x
    x = 33,965,545.86/6,439.61
  6. Step 6: Final answer
    x = 5,274.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.